NHT SA-3 manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of NHT SA-3, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of NHT SA-3 should contain:
- informations concerning technical data of NHT SA-3
- name of the manufacturer and a year of construction of the NHT SA-3 item
- rules of operation, control and maintenance of the NHT SA-3 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of NHT SA-3 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of NHT SA-3, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the NHT service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of NHT SA-3.

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It is mostly in the manuals where we will find the details concerning construction and possibility of the NHT SA-3 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

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Table of contents for the manual

  • Page 1

    SA-3 Subwoofer Amplifier Now Hear This 6400 Goodyear Road Benicia, CA 94510 800-NHT -9993 OWNER’S MANUAL [...]

  • Page 2

    1. READ INSTRUCTIONS - All safety and operating instructions should be read before the appliance is operated. 2. RET AIN INSTRUCTIONS - Safety and operating instructions should be ret ained for future reference. 3. HEED W ARNINGS - All warnings on the appliance and in operating instructions should be adhered to. 4. FOLLOW INSTRUCTIONS - All operati[...]

  • Page 3

    Thank you for your purchase of the NHT SA-3 monaural subwoofer amplifier . Please take a few moments to read through this Owner ’s Manual prior to inst alling your new amplifier and/or subwoofer system. The information provided can help you to obt ain maximum performance from your audio system. For your convenience, a glossary at the end of this [...]

  • Page 4

     Design NHT product s are designed to deliver refined, musical sound from attractive and affordable p ackages. Our effort s are guided by the study of human hearing and are optimized for real-world use. Every NHT product undergoes rigorous testing and quality control at the factory to ensure you years of listening pleasure. The NHT SA-3 Subwoofe[...]

  • Page 5

    3 (A) Power Switch - T urns the unit on and off (B) Power / St atus Light - Tri-color LED: Green (On), Orange (S tandby), Red (Protect) (C) V olume Control - Adjusts the loudness of the subwoofer independently of the main speakers (D) Subwoofer Output T erminal - 5-way binding posts for connection to the subwoofer (E) High-Pass Filter (High Pass Fc[...]

  • Page 6

     General Connections Caution: Prior to connecting the SA-3 to your system, it is important that all AC power connections to associated components (receivers, amplifiers, pre-amplifiers, processors, etc.) are either unplugged or turned off. Do not plug in or connect the SA-3 to AC power until all connections have been made. The SA-3 subwoofer amp[...]

  • Page 7

    phase settings on the same track. Do not attempt to evaluate the best sound while standing above the subwoofer or amplifier , as the sound at the listening position will be significantly different.  Subwoofer V olume Control The SA-3’s front p anel VOLUME CONTROL allows you to adjust the volume of the subwoofer relative to the rest of the syst[...]

  • Page 8

    This method of connection allows your main speakers to receive the full-range audio signal (no high-pass filtering), and the subwoofer to be utilized for low bass extension only . 1) Y our L & R speakers are connected directly from your amplifier / receiver . 2) If you have a receiver with “Pre-Out” (or “Line Out”) jacks but no “Main-[...]

  • Page 9

    4) Connect the SA-3 SUBWOOFER OUTPUT to the SW3S input terminals with speaker cable. This method allows your main speakers to receive a high-pass filtered signal (not full range), and the subwoofer to be utilized for low- to mid-bass reproduction. The full-range line-level signal coming from the receiver’s “Pre-Out” passes through the SA-3’[...]

  • Page 10

     Fine T uning the Subwoofer The frequency chart below lists some terms commonly used to describe dif ferent bands of the frequency spectrum. The key to good subwoofer / speaker integration is repeated listening, followed by small re-adjustments of the subwoofer controls. The most im portant bass tuning functions you will control are the LOW-P AS[...]

  • Page 11

     The SA-3 and Biamplification All NHT tower loudspeakers are designed with dual set s of binding posts to allow for biamplification. Biamplification is the use of two sep- arate amplifiers, one to power the low frequency (subwoofer) drivers and one to power the upper frequency (midrange / tweeter) drivers. The advantages of biamplification inclu[...]

  • Page 12

    This connection method routes the full-range line-level signal from the preamplifier through the SA-3, which passes on a high-pass filtered signal to the main amplifier and powers the subwoofer sections of the speakers directly with a low-pass filtered signal. Do not use the receiver ’s “Subwoofer Out” jacks to connect the SA-3, as this signa[...]

  • Page 13

    This connection method results in sending a full-range line-level signal to both the main amplifier and the SA-3. If you have a separate preamplifier that features two sets of line output s, each set is connected to one amplifier . If the preamplifier features only one set of line outputs, use “Y”-adaptors to split the signal. If you have a rec[...]

  • Page 14

     Operation The SA-3 was designed to handle a wide range of listening levels, but every component has limits. It is import ant to use common sense and listen for signs of possible distress from the subwoofer . Noticeable distortion or harsh breakup is an indication that either the SA-3 or the subwoofer is running beyond its cap acity , and the vo[...]

  • Page 15

     Glossary of T erms Active: Uses electrical power . Amplifier: An electronic device that increases the current of a signal, providing power to the loudspeakers (i.e. power amplifier , integrated amplifier , receiver). Bass: The range of audio frequencies below 160Hz, characterized by low pitch. Crossover: An electronic circuit that divides an au[...]

  • Page 16

    W arranty (V alid Only in the U.S.A.) W arranty Period: For the period of 5 years for parts and 5 years for labor for loudspeaker product s and 1 year for part s and 1 year for labor for electronic components from date of original purchase (the warranty period) from an authorized NHT dealer , NHT warrant s that if our product fails to function prop[...]